As Paul concludes his letter, he discusses practical ways not to let circumstances, unresolved conflict, anxiety, and selfishness take away our joy as believers. As believers, we must not allow anxiety to rob of us of the joy of Jesus. Rather, through prayer, setting our minds on right areas, following Jesus, and living generously, we can allow the peace and joy of God to rule our minds and hearts.
Philippians 4:4-9 (ESV)
Rejoice in the Lord always; again I will say, rejoice. Let your reasonableness be known to everyone. The Lord is at hand; do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus.
Finally, brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things. What you have learned and received and heard and seen in me—practice these things, and the God of peace will be with you.
Luke 10:38-42 (ESV)
Now as they went on their way, Jesus entered a village. And a woman named Martha welcomed him into her house. And she had a sister called Mary, who sat at the Lord's feet and listened to his teaching. But Martha was distracted with much serving. And she went up to him and said, “Lord, do you not care that my sister has left me to serve alone? Tell her then to help me.” But the Lord answered her, “Martha, Martha, you are anxious and troubled about many things, but one thing is necessary. Mary has chosen the good portion, which will not be taken away from her.”